added tracer for logging

hash/sp1/bench/run.sh

@@ -12,4 +12,4 @@ echo "HASH            = $ZKBENCH_HASH_TYPE"
 echo "Input Size (Bytes) = $ZKBENCH_INPUT_SIZE_BYTES"
 
 # Run the benchmarks
-./target/release/bench-script $ZKBENCH_HASH_TYPE $ZKBENCH_INPUT_SIZE_BYTES
+RUST_LOG=info ./target/release/bench-script $ZKBENCH_HASH_TYPE $ZKBENCH_INPUT_SIZE_BYTES

hash/sp1/bench/script/src/main.rs

@@ -13,7 +13,7 @@ use crate::benches::{
     blake3::blake3_benchmark,
     poseidon2::poseidon2_benchmark
 };
-
+use sp1_core::utils;
 use std::process;
 
 fn main() {
@@ -28,6 +28,9 @@ fn main() {
     let bench_type = &args[1];
     let size = args[2].parse::<usize>().unwrap();
 
+    // Setup a tracer for logging.
+    utils::setup_logger();
+
     match bench_type.as_str() {
 
         "sha256" => {